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Search: Posts Made By: sam_sam_sam
Forum: Troubleshooting Power Supplies and Power Supply Design Today, 04:08 AM
Replies: 1
Views: 30
Posted By sam_sam_sam
Re: another imac psu ADP-200DFB

Check all capacitors that are less than 100uf with an ESR meter if you do not just results
Forum: Troubleshooting Power Supplies and Power Supply Design Today, 04:05 AM
Replies: 14
Views: 188
Posted By sam_sam_sam
Re: Reebok one GT40s treadmill lift motor runs at switch on

Dose this device have a troubleshooting screen where you can see if the encoder is counting smooth and not jumping the counting numbers up or down or all over the place

It might not to check...
Forum: Troubleshooting Power Supplies and Power Supply Design Today, 03:30 AM
Replies: 9
Views: 605
Posted By sam_sam_sam
Re: 80v charger blown caps .

Check the input voltage to the micro controller to make sure that it is correct voltage ( battery voltage ) especially sense you have one to compare to
Forum: General Electronics Technical Discussion Yesterday, 06:15 AM
Replies: 6
Views: 96
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion Yesterday, 06:11 AM
Replies: 6
Views: 96
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion Yesterday, 06:08 AM
Replies: 6
Views: 96
Posted By sam_sam_sam
Forum: General Electronics Technical Discussion 06-30-2022, 08:23 PM
Replies: 6
Views: 96
Posted By sam_sam_sam
Component tester which one is worth the money from it capability to test and identify

I am thinking of buying a component tester but I want to get the most out of the device for the money that I am going to spend

Any idea but I would prefer actual use of the device it good points...
Forum: General Electronics Technical Discussion 06-30-2022, 07:30 PM
Replies: 6
Views: 75
Posted By sam_sam_sam
Re: Anyone know of an alternative for a R10E2662-2 DPDT relay

Even if the pins are not exactly the same if you have room in the enclosure you might be able to mount it some where near the board
Forum: General Electronics Technical Discussion 06-28-2022, 01:36 PM
Replies: 223
Views: 20,608
Posted By sam_sam_sam
Re: Here is a good used source for 18650 batteries

Here is a new item at Battery Hookup

https://batteryhookup.com/products/27-panasonic-ncr18650a-2900mah-cells
Forum: General Electronics Technical Discussion 06-28-2022, 10:19 AM
Replies: 4
Views: 127
Posted By sam_sam_sam
Re: Microwave advise please

Are you able to find the specifications for the one you have and match it up as close to what you have now

This aspect is going to very important as well to the one you have “ Type of Outline—>...
Forum: General Electronics Technical Discussion 06-27-2022, 04:53 PM
Replies: 4
Views: 127
Posted By sam_sam_sam
Re: Microwave advise please

You are probably correct in your determination of what the issue is

Depending on the model of your microwave would determine weather or not replacing the
Forum: General Electronics Technical Discussion 06-25-2022, 08:40 AM
Replies: 11
Views: 190
Posted By sam_sam_sam
Re: Conversion of Anolog Voltmeter into Ammeter

I think should try it with out the resistor 3.5 k ohms and see what happens but only do 100 milliamperes or less and see if you get meter movement that is close to what you think it should be with...
Forum: Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices 06-25-2022, 07:44 AM
Replies: 10
Views: 614
Posted By sam_sam_sam
Re: Why would an HP deskjet not print?

HP some real issue with there ink cartridges I have had issues with printer software having issues that are not easily resolved or understandable only thing I have found this to work but not always...
Forum: General Electronics Technical Discussion 06-25-2022, 07:35 AM
Replies: 11
Views: 190
Posted By sam_sam_sam
Re: Conversion of Anolog Voltmeter into Ammeter

I am not sure if the meter coil needs to be setup for current because there meters that are setup this way I can not tell you what the difference between them is
Forum: Troubleshooting Audio Equipment 06-25-2022, 06:45 AM
Replies: 4
Views: 132
Posted By sam_sam_sam
Re: DIY amp for speakers

I would highly suggest that you use very good quality wiring that is shielded for best results
Also get a good quality power amplifier that only requires 12 volt maximum for best results the one you...
Forum: Equipment Usage, Soldering, Techniques, and Reviews 06-23-2022, 07:29 AM
Replies: 9
Views: 191
Posted By sam_sam_sam
Re: Buy a Agilent U1242A or Fluke 179 DMM?

I would agree with the other two that you should have more than one meter so you would have something to compare to if you question the results that you are getting

Very nice meter and the manual...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-20-2022, 07:00 AM
Replies: 10
Views: 203
Posted By sam_sam_sam
Re: HP Elite 8300 computer completely locked no response from key board or mouse

Thanks for the photo and pointing out what to check
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-20-2022, 06:58 AM
Replies: 10
Views: 203
Posted By sam_sam_sam
Re: HP Elite 8300 computer completely locked no response from key board or mouse

Thanks for all of these responses I have do some testing and checking something whenever I have some time again
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-19-2022, 12:08 PM
Replies: 10
Views: 203
Posted By sam_sam_sam
Re: HP Elite 8300 computer completely locked no response from key board or mouse

I might check some of the capacitors on the motherboard but I have not had much success with recapping motherboard because of the fact of so many layers on these boards the soldering joints come off...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-19-2022, 11:22 AM
Replies: 10
Views: 203
Posted By sam_sam_sam
Re: HP Elite 8300 computer completely locked no response from key board or mouse

I try to get this information tomorrow or the next few days

I did a quick Google search on “Nuvoton” and found that it is a controller ic chip and if this is the case to me it not worth trying to...
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-19-2022, 10:43 AM
Replies: 10
Views: 203
Posted By sam_sam_sam
Re: HP Elite 8300 computer completely locked no response from key board or mouse

This is a desktop computer not a laptop computer

I did a quick Google search on this “EC ic” and it talks about laptops computers

The question is it worth trying to repair this issue
Forum: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals 06-19-2022, 07:49 AM
Replies: 10
Views: 203
Posted By sam_sam_sam
HP Elite 8300 computer completely locked no response from key board or mouse

Dose anyone know what would cause this issue because I do not understand what is going on

The setup is the hard drive is set to never turn off
The video set to not turn off
Supposedly it...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-19-2022, 04:59 AM
Replies: 17
Views: 846
Posted By sam_sam_sam
Re: Help figure out burnt up resister values after fireworks(:

Sometimes you have to use a higher wattage light bulb for it work more like it would plugged directly into the wall

Here is a post where I used the light bulb contraption ( instead of the fuse )...
Forum: Troubleshooting Power Supplies and Power Supply Design 06-19-2022, 04:56 AM
Replies: 17
Views: 846
Posted By sam_sam_sam
Re: Help figure out burnt up resister values after fireworks(:

Good work
One more item that does not end up in a landfill
Forum: Troubleshooting Power Supplies and Power Supply Design 06-19-2022, 03:55 AM
Replies: 4
Views: 221
Posted By sam_sam_sam
Re: Can Ammeter damage Power Supply?

This depends on the meter module to what voltage it will work at
Now some meter modules can be modified to work on a separate power supply I have done this personally before but not all can be done...
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